| 摘要 |
PROBLEM TO BE SOLVED: To prevent a radiation measuring apparatus, especially a personal radiation dosimeter from malfunctioning caused by extraneous electric waves, or vibrational impacts. SOLUTION: A noise sensor 102 for detecting electromagnetic noise and an impact sensor 103 for detecting the impact are provided, and a signal processing section 104 processes a signal 108 which is output by a radiation sensor 101 as an invalid signal, when at least one of a noise detection signal 109 and an impact detection signal 110 is valid, thereby preventing the malfunctions due to noise. COPYRIGHT: (C)2008,JPO&INPIT
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